Finding the Fourth Proportional to 2,722.96, 4,086.06 and 1,425.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,722.96 : 4,086.06 = 1,425.16 : x
2. Step 2: Convert to fraction form
   2,722.96/4,086.06 = 1,425.16/x
3. Step 3: Cross multiply
   2,722.96x = 4,086.06 × 1,425.16
4. Step 4: Simplify right side
   2,722.96x = 5,823,289.27
5. Step 5: Solve for x
   x = 5,823,289.27/2,722.96
6. Step 6: Final answer
   x = 2,138.59